Duplex Steel stub end are available as per the following:- 

Specification:- 
astm / asme sa 403/790 uns no s 31803, s 32205, s 32550, s 32750, s 32760
Range: 15 mm nb up to 1200 mm nb in schedule 5s, 10s, 10, 20, 40s, 40, std, 60, 80s, 80, xs, 100, 120, 140, 160 & xxs

Duplex Steel Nipples are available as per the following specifications:-

Specification:-
astm / asme sa 403/790 uns no s 31803, s 32205, s 32550, s 32750, s 32760
Range: 15 mm nb up to 1200 mm nb in schedule 5s, 10s, 10, 20, 40s, 40, std, 60, 80s, 80, xs, 100, 120, 140, 160 & xxs

Range:
15 mm nb up to 1200 mm nb in schedule 5s, 10s, 10, 20, 40s, 40, std, 60, 80s, 80, xs, 100, 120, 140, 160 & xxs

Form:-
Equal Tee, Unequal Tee, Crosses

Specification:
astm / asme sa 403/790 uns no s 31803, s 32205, s 32550, s 32750, s 32760

Range:
15 mm nb up to 1200 mm nb in schedule 5s, 10s, 10, 20, 40s, 40, std, 60, 80s, 80, xs, 100, 120, 140, 160 & xxs


Specification:
astm / asme sa 403/790 uns no s 31803, s 32205, s 32550, s 32750, s 32760